add automated tests gh actions workflow

.github/workflows/tests.yml

@@ -0,0 +1,57 @@
+name: Automated testing
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+env:
+  WORKERS: 3
+  SECRET_KEY: "Insecure secret key"
+  DEBUG: "TRUE"
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    services:
+      postgres:
+        image: postgres:16-alpine
+        env:
+          POSTGRES_USER: postgres
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_DB: postgres
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd "pg_isready -U postgres"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+
+    env:
+      POSTGRES_DB: postgres
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      DATABASE_URL: postgres://postgres:postgres@localhost:5432/postgres
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+
+      - name: Run migrations
+        run: python src/manage.py migrate
+
+      - name: Run tests
+        run: pytest -n $WORKERS --cov=src/ --import-mode=importlib